Magnetic properties of CoPt NPs

Hysteresis loops at 300 K (a), at 2 K (c) and ZFC/FC (b) for annealed CoPt NPs embedded in C matrix. The solid lines correspond to the fit. Mean astroids associated to the biaxial fit (d).

From V. Dupuis et al. Phys.Chem.Chem.Phys., 2015, 17, 27996–28004